(AP) -- The U.S. Geological Survey said Thursday morning that a magnitude 3.0 shock struck about seven miles south of Napa just before 4 a.m.
The Napa Valley has registered a series of aftershocks since the big Sunday morning quake, which caused a million dollars in damage and caused a number of injuries.
There were other small quakes in the West in the early morning hours. The USGS reports a magnitude 3.0 quake about 11 miles south of Hollister in San Benito County about 3 a.m. this morning. And there was a magnitude 2.6 quake near Mount Hood in Oregon just before 2 a.m.
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